add migration to automatically assign group to existing superusers

cookbook/migrations/0118_auto_20210406_1805.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.1.7 on 2021-04-06 16:05
+
+from django.db import migrations
+from django_scopes import scopes_disabled
+
+
+def migrate_no_group_superusers(apps, schema_editor):
+    with scopes_disabled():
+        User = apps.get_model('auth', 'User')
+        Groups = apps.get_model('auth', 'Group')
+
+        for u in User.objects.filter(is_superuser=True).all():
+            if u.groups.count() == 0:
+                u.groups.add(Groups.objects.get(name='admin'))
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cookbook', '0117_space_max_recipes'),
+    ]
+
+    operations = [
+        migrations.RunPython(migrate_no_group_superusers),
+    ]